Demai 5:5 - 5:6

הלוקח מן העני – going around begging at the doors.

פלחי דבילה – pieces of cakes of pressed figs.

בולל ונוטל – stamping on the dates or the dried-figs and combining them together and they are mixed and combined and it is found that he separates for tithing from that which is obligatory for he holds that there is a mixture in something dry. But slices of bread or pieces of fig-cake are not mixed and he comes to separate tithes from that which is exempt for that which is liable [for tithing].

שהמתנה מרובה – at the time when all give a large gift, that all of the gifts are equivalent, then the mixture is effective.

אבל בזמן ש המתנה מועטת – that is to say, one gift is smaller than its neighbor or is not mixed well, for perhaps not all of them had separated his priestly gifts and we are suspect that perhaps he is separating tithes from the majority for the minority. So appears the explanation of this Mishnah in the Jerusalem Talmud.

סיטון (wholesale provision dealer) – a merchant who purchases grain from many different owners together and sells to others at wholesale prices (and the purchaser must tithe them -see Tractate Demai, Chapter 2, Mishnah 4).

לא יעשר מזה על זה – for perhaps what he purchased from him the second time, he had acquired it from another individual, and he would come to set aside [tithes] from that which is exempt for that which is obligatory.

ואפילו מאותו סוג (and even from the same chest – and the same quality) – that is to say, from the same chest. And similar to this is found in Tractate Kelim Chapter 167, Mishnah 3: “The large provisions chest.”

ואפילו מאותו המין (and even from the same type) – that both of them are reddish dark-colored wheat or both of them are white. But if the wholesale provision dealer stated that he purchased them from one person, he is believed.